Предмет: Химия, автор: superstar9310

Ребята,пожалуйста,очень срочно!

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Ответы

Автор ответа: Daniilvolkswagen12

0

Химический знак - О. Ar (O2)=32.

superstar9310: А ты сможешь ещё с 4 помочь?)

Автор ответа: ajnagulbisembaeva9

0

Ответ:

химический знак-O.Ar(02)=32

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